549011441459489 has 2 divisors, whose sum is σ = 549011441459490. Its totient is φ = 549011441459488.

The previous prime is 549011441459419. The next prime is 549011441459497. The reversal of 549011441459489 is 984954144110945.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415420217059600 + 133591224399889 = 20381860^2 + 11558167^2 .

It is a cyclic number.

It is not a de Polignac number, because 549011441459489 - 2⁴⁴ = 531419255415073 is a prime.

It is a super-2 number, since 2×549011441459489² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (549011441459419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274505720729744 + 274505720729745.

It is an arithmetic number, because the mean of its divisors is an integer number (274505720729745).

Almost surely, 2^{549011441459489} is an apocalyptic number.

It is an amenable number.

549011441459489 is a deficient number, since it is larger than the sum of its proper divisors (1).

549011441459489 is an equidigital number, since it uses as much as digits as its factorization.

549011441459489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 149299200, while the sum is 68.

The spelling of 549011441459489 in words is "five hundred forty-nine trillion, eleven billion, four hundred forty-one million, four hundred fifty-nine thousand, four hundred eighty-nine".